/Engine/Plugins/VirtualProduction/DMX/DMXEngine/Source/DMXEditor/Public/Widgets/SAssetPickerButton.h
Allows more than a single class on the picker list. Overrides AssetClass (doesn't affect the Use Selected on Content Browser button)
WidgetArgsType & AllowedClasses &40; TArray< FTopLevelAssetPath > InArg &41;